
3-10
WRR-855B
TUN-8 board
RV201
RV202
ANT IN B side Adjustment
(6) Connect the signal generator to the ANT IN B connec-
tor. (Set the same setting as procedure (1) above for
spectrum analyzer).
(7) Perform the procedures (2) , (3) and (4) above,
Adjustment
:
1
T403/TUN-8 board
Adjust
1
T403 finely.
6. Output Level Adjustment
Equipment and Tools
• DC power supply:
+
7.0
±
0.1 Vdc
• Audio analyzer (level meter, distortion meter)
• MIC amp (Noise meter)
• Oscilloscope
• Adjuster (0.4
x
1.3 mm) : 1 (Part No. 7-221-652-81)
• Power supply/AF OUT connector
(Refer to the ''How to make power supply/AF OUT
connector" on page 3-1.)
Connection
Same as ''5. FM Detector Adjustment".
Adjustment Location
Switch and Control Setting
Channel setting:
CE21 model; Group 00, 22-32 channel (482.000 MHz)
CE33 model; Group 00, 34-32 channel (578.000 MHz)
CE62 model; Group 00, 63-32 channel (810.000 MHz)
CE67 model; Group 00, 68-32 channel (850.000 MHz)
U14 model;
Group 00, 16-01 channel (482.125 MHz)
U30 model;
Group 00, 32-01 channel (578.125 MHz)
U42 model;
Group 00, 44-01 channel (650.125 MHz)
U62 model;
Group 00, 64-01 channel (770.125 MHz)
U66 model;
Group 00, 68-01 channel (794.125 MHz)
MUTING: OFF
Procedure
(1) Connect the Audio analyzer to the AF OUT (power
supply/AF OUT connector) of D-sub 15 pin connector
via the MIC amp.
(2) Connect the signal genarator to the ANT IN A connec-
tor, and set the signal generator as follows:
Signal generator setting
FREQUENCY (Carrier frequency) :
CE21 model; 482.000 MHz
CE33 model; 578.000 MHz
CE62 model; 810.000 MHz
CE67 model; 850.000 MHz
U14 model;
482.125 MHz
U30 model;
578.125 MHz
U42 model;
650.125 MHz
U62 model;
770.125 MHz
U66 model;
794.125 MHz
RF OUTPUT (Output level): 60 dB
µ
V
EMF
( =
_
53 dBm)
MODULATION : 1 kHz
DEVIATION
:
±
40 kHz
ANT IN A side Adjustment
(3) Adjustment
Specification :
AF output level = Maximum
Adjustment
:
1
T103/TUN-8 board
(4) Set the audio analyzer to distortion meter mode.
(5) Adjustment
Specification :
Distortion ratio = Minimum
(0.8 % or less)
Adjustment
:
1
T103/TUN-8 board
Adjust
1
T103 finely.
Содержание WRR-855B
Страница 1: ...UHF SYNTHESIZED TUNER UNIT WRR 855B SERVICE MANUAL 1st Edition Revised 2 ...
Страница 4: ...2 WRR 855B 8 Schematic Diagrams TUN 8 8 1 CPU 342 8 8 DP 236 8 10 SW 814 8 10 ...
Страница 10: ...1 6 WRR 855B Sony Corporation Printed in Japan ...
Страница 38: ......
Страница 58: ......
Страница 67: ...7 1 WRR 855B 7 1 Section 7 Board Layouts ...
Страница 68: ...7 2 WRR 855B 7 2 TUN 8 Suffix 11 TUN 8 Suffix 11 TUN 8 A SIDE SUFFIX 11 TUN 8 B SIDE SUFFIX 11 ...
Страница 69: ...7 3 WRR 855B 7 3 TUN 8 Suffix 22 TUN 8 Suffix 22 TUN 8 A SIDE SUFFIX 22 TUN 8 B SIDE SUFFIX 22 ...
Страница 70: ...7 4 WRR 855B 7 4 CPU 342 Suffix 11 CPU 342 Suffix 11 CPU 342 A SIDE SUFFIX 11 CPU 342 B SIDE SUFFIX 11 ...
Страница 71: ...7 5 WRR 855B 7 5 CPU 342 Suffix 21 CPU 342 Suffix 21 CPU 342 A SIDE SUFFIX 21 CPU 342 B SIDE SUFFIX 21 ...
Страница 83: ......
Страница 84: ...Printed in Japan Sony Corporation 2006 6 16 2001 WRR 855B U CE E 9 976 898 03 ...